/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayEffectExecutionCalculation.h
Attempts to calculate the base value of a transient aggregator given the specified parameters.
True if the base value was successfully calculated, false if it was not
bool AttemptCalculateTransientAggregatorBaseValue ( const [FGameplayTag](API\Runtime\GameplayTags\FGameplayTag) & InAggregatorIdentifier, float & OutBaseValue ) const